The message shown is a DHCP broadcast message sent out to request an IP address from whatever the DHCP server is on your LAN, usually a router. Don't know why Pop Peeper is doing it, but usually there are redundant ways to obtain the address and something else in your system gets it so Pop Peeper can run. If you really want to see what is going on you can run a program called Wireshark, but should not be a problem if things are working correctly-just looks like Pop Peeper is trying to execute early.